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Performance Monitoring - RHEL 7.4
Post 303021902 by Overcast451 on Monday 20th of August 2018 09:41:00 AM
08-20-2018
Performance Monitoring - RHEL 7.4
Have a question about doing some performance monitoring - how to approach it.
This is on RHEL 7.4
We are moving a rather large application to new hardware in the future. I would like to find a way to compared performance on the new hardware at different stages and at different times.
I'm familiar with the basic tools, such as top - and I've found an app called 'stress' that can be used to put various loads on the system.
But I am wanting to make a comparison on how the performance varies or does not vary after things like: Firmware upgrades, App installs, etc.
Any suggestions on a method/process or tool maybe that can assist with this? I can cap out the loads with 'stress' but I'm not sure what that will tell me. My first thought was to run the app with a certain set of parameters and then compare future runs using the same set of parameters. I would need or like it to be able to log results at set intervals via cron or something similar.
But looking for suggestions
Thanks!
This is on RHEL 7.4
We are moving a rather large application to new hardware in the future. I would like to find a way to compared performance on the new hardware at different stages and at different times.
I'm familiar with the basic tools, such as top - and I've found an app called 'stress' that can be used to put various loads on the system.
But I am wanting to make a comparison on how the performance varies or does not vary after things like: Firmware upgrades, App installs, etc.
Any suggestions on a method/process or tool maybe that can assist with this? I can cap out the loads with 'stress' but I'm not sure what that will tell me. My first thought was to run the app with a certain set of parameters and then compare future runs using the same set of parameters. I would need or like it to be able to log results at set intervals via cron or something similar.
But looking for suggestions
Thanks!
Last edited by Overcast451; 08-20-2018 at 10:42 AM.. Reason: Updating Subject with more detail
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LEARN ABOUT SUNOS
cpc_access
cpc_access(3CPC) cpc_access(3CPC) NAME
cpc_access - test access CPU performance counters SYNOPSIS
cc [ flag... ] file... -lcpc [ library... ] #include <libcpc.h> int cpc_access(void); Access to CPU performance counters is possible only on systems where the appropriate hardware exists and is correctly configured. The cpc_access() function must be used to determine if the hardware exists and is accessible on the platform before any of the interfaces that use the counters are invoked. When the hardware is available, access to the per-process counters is always allowed to the process itself, and allowed to other processes mediated using the existing security mechanisms of /proc. Upon successful completion, cpc_access() returns 0. Otherwise, it returns -1 and sets errno to indicate the error. By default, two common errno values are decoded and cause the library to print an error message using its reporting mechanism. See cpc_seterrfn(3CPC) for a description of how this behavior can be modified. The cpc_access() function will fail if: EAGAIN Another process may be sampling system-wide CPU statistics. ENOSYS CPU performance counters are inaccessible on this machine. This error can occur when the machine supports CPU performance counters, but some software components are missing. Check to see that all CPU Performance Counter packages have been cor- rectly installed. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ |Interface Stability |Obsolete | +-----------------------------+-----------------------------+ cpc(3CPC), cpc_open(3CPC), cpc_seterrfn(3CPC), libcpc(3LIB), proc(4), attributes(5) The cpc_access() function exists for binary compatibility only. Source containing this function will not compile. This function is obsolete and might be removed in a future release. Applications should use cpc_open(3CPC) instead. 28 Mar 2005 cpc_access(3CPC)